Cheng-Chieh Lee

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Kaohsiung Hsien, TW

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Patents Applicationslast 30 patents

Information Patent Application
Method for making cooking utensils with patterns
- Publication number 20020166224
- Publication date Nov 14, 2002
- Cheng-Chieh Lee
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...